Gas burner



Feb. 8; 1927.

T. A. LEWIS GAS BURNER Filed April 26, 1926 ZdA'. Jews INVENTOR ATTORNEYPatented Feb. 8, 1927. s r

'TEID A. LEWIS, or neuron, Taxes, assrenon TO TED Lewis a col, orzonn'ron,

TEXAS.

GAS BURNER.

Application filed April 26, 1926. Serial No. 104,591.

This invention relates to improvements in gas burners, havingparticularreference to gas burners for boilers of steam engines,

a very low pressure of and so construct- 7 ed that the gas will. be feduniformly to the burner to exclude the possibility of pocket-- ing ofthe gas.

Another particular object'of the invention is that the gas is heatedprior to its ignition, and the inflow of gas is at all times greater involume than the outflow, thereby obtaining a uniform pressure in theburner.

Further objects, including means for preventing the outer end of theburner from becoming overheated, will be brought out in the followingdetailed description,.in connection with the annexed drawings, andwherein:

Figure 1 is a side elevational view of a steam boiler, and illustratingan embodiment of the burner.

Figure 2 is a top plan view of the burner, partly in section on the line22 of Fig. 1.

Figures 3 and 4 are enlarged cross-sectional views along lines 3-3 and4.l respectively of Figure 2; and

Figure 5 is an enlarged detail view of one of the burner tips.

Proceeding in accordance with the drawings and wherein numerals areemployed to designate the various parts, 1" denotes a boiler supportedover a furnace 2, including a front portion 3 with opening 4. Over theopening is a door 5, the door also having an opening for the burnerembodying the invention.

This burner is illustrated in assembled form in a top plan view inFigure 2, and con sists of a cylindrical gas receiver head 6 havingapertures in its periphery on opposite sides for pipes 7 and 8,conveying gas.

from a convenient source of supply. The front of the head, lookingtoward the boiler door, is closed and spaced apart in the rear of thehead are apertures in which are placed the burner tubes 9. These tubesare'firmly seated in the openings so as to lie flush with the inside ofthe rear of the head.

Referring again to the gas feed pipes 7 and 8,.these pipes are disposedon opposite sides of the burner head 6 and the inner ends of the pipeshave a curved lip 10 and direction of the arrows;

an opening 11. The gas entering'the pipes is thus forced into the headin acurved path and 1S whirled around inside the head in the p Theentrance of gas on opposite sides of the head thus pro vides an amplesupply and forms a whirling or circulatory movement prior to itsentrance a to theburner tubes 9. The object of the circulatory movementofthe gas is to prevent pocketing thereof and to provide a uniform andsteady pressure and feeding of gas to the burner tubes 9. l

Spaced apart from the burner head ,6 is a cylindrical body 12 in whichare carriedthe burner tubes. The tubes areheld in spaced relation inthis body 12 by a collar 13, hav- I ing web portions 14;. By referenceto Figure 2 it will be observed that the tubes 00- cupy a cylindricalformation in assembled formation, being spaced from the inner periphery15 of the body 12. Also that the outer ends 16 of the tubes do notextend to the edge of the body 12, but are spaced inward therefrom. Onthe ends of the tubes are disposed burner tips 17, having perforations18, H

Disposed in slidable relation on the outer periphery of the body 12 is asleeve 19. This sleeve has a set screw 20 for holding the sleeve inadjusted position. This sleeveis capable of adjustment backward andforward on the body 12- to properly regulate the admission of airbetween the inner periphery 15 of the body 12 and the tubes 9.

From the foregoing it will be apparent that the gas, which may either benatural, artificial or acetylene, enters the burner head 6 and is amplycirculated or whirled around in the head and is thus fed outward to theburner tubes. The arrangement is such that the volume of gas in theburner head is always larger than the output through the burners, thusmaintaining a constant pressure and volume. In the arrangement of theburner tips inwardly from the outer end of thebody 12, the air and gasare permitted to come together inside the body and the air, entering theannular space A and around the space E thus causes the gas from theburner tips tobe forced outwardly along the plane of the longitudinalinner surface of the body 12, the flame not touching the body 12. Thegas is thus ignited and mingled and mixed with the air and combustiontakes place just within the body 12, and the heat is not intense enoughto scale the body 12 or allow it to berily the air is permitted to enterbehind the flow of gas and mixes with the gas prior to By the presentarrangement the,

ignition. air is cold or approximately 0001 7 before mixing with thegas. A blue flame can be provided by this construction and the burneroperated on very low gas pressure.

Obviously, minor changes may be made in the construction of the burner,in keeping and within the scope and meaning of the annexed claims. 'WhatI claim is;

1. A gas burner comprising a burner head provided with openings onopposite sides in its-periphery for gas "feed lines, said openingshaving pipes extending into the head, the in- V ner ends of the pipesbeing curved in opposite directions to cause the gasto whirl within thehead, tubular burner pipes communicating with the interior- 0f theburner head and spaced apart in one end of said head and provided withperforated burner tips on their outer ends, a cylindrical member spacedapart from the head and in which the tubular burner pipes are disposed,and

an adjustable sleeve on the cylindrical memher for air regulation.

2. A gas burner comprising a head for receiving a volume of gas, pipesentering the head on opposite sides in its periphery and havingoppositely curved inner ends projecting into the head; a cylindricalmember spaced apart from head, a plurality of spaced apart burner tubesconnected at their inner ends to and having open communication with saidhead and projecting into said cylindrical member short of the outer end.of said cylindrical member; periorated burner tips on said tubes, and asleeve on said cylindrical member for controlllngair.

In testimony whereof I aihx my signature.

TED A. LEWIS.

